It's interesting that in the early 2010s, both halves of the ecosystem were talking about "convergence:" Ubuntu wanted to make its Linux render a single column on a handset and with floating windows on a larger screen. Motorola had a similar project based on Android.
A dozen years later, nobody has done that well. Ubuntu gave up. Mobile-targeted Linux distributions aren't good (missing functionality, mobile UX, or both). The linked distribution is running Debian in a container for desktop on top of Android. The rumors about the future of ChromeOS are imagining something similar.
Recent iterations of iOS are getting closer to being able to replace a Mac for a class of tablet-owning users who don't need desktop software, but the ecosystems are pretty well separated for most.
Adapting desktop Linux to mobile seems to be impossibly hard with the amount of resources those distributions have.
A dozen years later, nobody has done that well. Ubuntu gave up. Mobile-targeted Linux distributions aren't good (missing functionality, mobile UX, or both). The linked distribution is running Debian in a container for desktop on top of Android. The rumors about the future of ChromeOS are imagining something similar.
Recent iterations of iOS are getting closer to being able to replace a Mac for a class of tablet-owning users who don't need desktop software, but the ecosystems are pretty well separated for most.
Adapting desktop Linux to mobile seems to be impossibly hard with the amount of resources those distributions have.